Topic 2.3: Hazards Quiz

Burning vegetation contributes to air pollution by:

• Releasing carbon dioxide

• Producing oxygen

• Absorbing pollutants

• Reducing greenhouse gases

Emissions from industries and motor vehicles have a significant impact on:

• Water pollution

• Air pollution

• Soil erosion

• Deforestation

What are the sources of air pollution as depicted in the diagram?

What are traffic hazards? What are the causes and impacts?

How can we prevent traffic hazards?

• By following traffic rules

• By ignoring traffic signals

• By driving recklessly

• By not wearing seat belts

Discuss the measures taken by the Traffic Police in Singapore to reduce traffic hazards.

• Implementing stricter traffic laws

• Increasing the number of traffic lights

• Reducing the number of vehicles on the road

• Improving public transportation

Which of the following is a major source of water pollution?

• Industrial waste

• Planting trees

• Recycling

• Using public transport

What is one of the primary causes of soil erosion?

• Deforestation

• Urbanization

• Reforestation

• Organic farming

Which practice can help reduce deforestation?

• Using recycled paper

• Burning fossil fuels

• Overgrazing

• Building more roads